Tips for biopsy

Hi all, I have a biopsy this Friday and I was wondering if anyone has any tips to make it a smooth one. This is my first time getting any sort of anesthesia work done. I already cut out any potential blood thinners. I took the day of and the day after off.

I have relatively small breasts and the lump seems to be just right under the skin.

Does anyone have any advice (besides freaking out) to make the whole ordeal comfortable?